Lamp.



l 955 es.'

v; G.A APPLE. mm. APPLICATION FILEDJULY 10, 1911.

waited` Aug. 6i 1912.

3 SHEETS-SHEET 1.

v. G. APPLEI l I LAMP. Anmigf'non FILED JULY 10,1911.

Patented Aug. 6, 1912.

LIZ/m6933631 V. G. APPLE.

y LAMP. APPLIOATION FILED JULY 10, 1911.

Patented Aug. 6, 1912.

entran sraalnrggnnr ernten.

VINCENT Gr. APPLE, GF DAYTON, OHIO.

LAMP.

To all-whom it may concern.:

Be it known that I, VINCENT G. A PLE, a citizen ot the United States, residing at Dayton, in the county of Montgomery and State of Ohio, *have invented certain new and useful Improvements in Lamps, of

which the following is a specification. i

My invention relates to improvements in lamps and has especial reference to that class of lamps that are used to project light into the path of a vehicle, such as locomotives, automobiles, and the like.

More specific objects of my invention are to generally improve structures of this character to the end that they shall be water and dust tight, that the er-erior thereof may be cleansed by water, from a hose, it' need be, without imp-airing its operation or etl'ectiveness; and that it may be dust tight to avoid the necessity of frequent cleansing of the re- 'teet and to prevent corrosion of the pola. l surfaces thereof or deposit of dust thereon.

Another object of my invention is to provide means whereby the lamp proper may be conveniently adjusted, from the exterior of the casing, thereby-to maintain the lamp in the desired focus oli the parabola.

Other and further objects of myV in-vent-ion will become apparent to persons skilled in the art from a consideration of the speciti ration, taken in conjunction with the drawings, wherein-' i Figure 1 is a central axial'section, taken on line 1 1 of Fig. '2, showing the lamp with a minimum of shading for the sake rot' 'clearness; Fie. is a t'ront view looking intot-he reflector; Fig. 3 is a side view ot the locking me 1z nism whereby the cover and reflector are locked in their respective relations with the exterior casing; Fig. 1 is an enlarged central section taken through the lamp, socket, and focus-adjusting means, showing fragments ot' the reflector and-eX terior casing; Fig. 5 is a section taken on line5-5 ot' Fig. 4l; Fig. 6 is an end and side View ot the locks used for locking the parts of the lamp `together and tor locking the lamp on its supports; and Fig. 7 is a pcrspective view of the key for saidlocks.

ln all of the views, the same reference characttn-s Iindicate similar parts.

ln the exempliticatimi which I have se lcctcd lor illustrating the clmractcrist-ics' ot my invention, the main, exterior casing indicated by reference character l0. lt is speeifieanen of Letters Patent.

Application tiled July 10, 1911.

rammed Aug. 6, 1912. serial No. 637,670.

as at lt, against which edge the locking bolt impinges in locking'the parts together. The front portion otA the frame 12 incloses a ller 15 of any suitable material. The front edge 1G of the bead 12 is inturned and immediately overlies the Iglass plate 17 that serves as a closure for the openinU. A thin annulus 18, preferably of metal, overlies the edge ot' the glass plate, and a similar ring lt), but of some yielding material, such as felt, rubber, or the like, is placed over and parallel with the ring 18, and serves as a packing for sealing the lamp casing when the'closure is'l properly in place. Clips 20 are placed at intervals around the outside of the filler, 15, and overlap the outer edge of the packing ring l!) to hold the plate 1 7 in the frame 12 ot' the closure. l

An interiorly polished, preferably paraboloidal, reflector, or as commonly termed paraholm 2l is perforated at its apex, as at 22,'lfor admission of the lamp socket 23.

` A screw-tl1r\aded collar 24, having a flange 25 isy secured to the parabola, and has screwthreaded engagement with the hollow fittingZt. 'lhe fitting 26 is flanged, as at 27, which ltangc. ctfectually closes the opening 28 in thel apex of the outer casing. An angular casting 2t) carries the socket 23 and the electric conducting wires 3Q and 3l which are pro-pcrly connected to suitable contacts within the socket. for engagement by the lamp 82. The angular casting 2) and the socket 23 are t'rccly slidable with-in the fitting 2G and the collar 24, respectively, and are relatively movable in an axial path by -means otl the adjusting screw 33. The tillister head ot' the screw 3 3 enters a crescent-shaped depression 34 in the casting 29, whereby to move said casting, and connected parts, axially, when the screw is turned into or out-of the screw-threaded boss 134 which projects laterally from oneside, of the titting 26. lVhen vthe screw is turned clockwise, the casting, sockct,`a1ld lamp are moved farther, in a direction toward the interior nf the struct-ure, as 'shown by dotted lines i T41ig. 1, and when turned counterclockwise', the axial movement of Said parts is in the opposite` direction. By this mear 5, the position of the lamp, within the parab` ola, with reference to the true focusing point be "conveniently` adjusted from without the casing and without afecting the seal of may v the casing.

tion 28 of clearly shown in Fig. 5.

SGI' ES 21S a means rabola,

space for the electric lamp.

jectmg lug 39,

perforated to permit the lugs to able manner inner end of the.lever 43 to lateral ino-tion of said lever.

position, 1. outwardly,

against the edge be observed thatthe lock at the u 55 of Fig.

has its parts in locked position.

"1f/A screw 50, provided on its outerend takes through a screw-threaded .perforation 52 provided in the lug 39; its inner end abuts against the end 47 of the lever 43. A simithrough a similar perforation 54 at right angles to screw '50, and bi- 05 sects the vertical perforation 40 in said lug.`

-with 'a triangular projection 51,

lar screw 53 takes To prevent relative rotation of the casing 10 and parts just described, I provide crescent-shaped notches 35 around ,the perforathe casing 10 for engagement by the screw head of the screw 33, and for acljusting the relative rotatable positions of the casing and the lamp-carrying parts, I provide a plurality of such notches, as

The lock, by means of which the closure 11 is secured and locked, to the casing 10, comprises a plate 38 having a laterally properforated, as at 40, for reception of the vertical rods upon which the lamp is to be supported. The casing. 10 is pass therebeyond and the plate 38 is secured in a suit-v to'the inner surface of thecasing 10. At the forward end of the plate 38 are inwardly-projecting brackets 41--42 between which a lever 43 is pivoted, as at 44.. A projecting guide 45 is provided near the prevent any spring 46' is lixed to the brackets 41-and 42 and has its looped end overlying the end'47 of thelever 43-to yieldingly hold said lever lin unlocked as shown at the upper part of Fig;- The outer end 48' of the lever 43 is curved which in locked position projects through a perforation'49 in thecyhndrical` portion 37 of the casing 10, and has bearing 14 of the frame 12. It will per part- 1 has its partsin unlocke position, while the lock at the bottom of the' gure porting rpd'sthatare intended. to enter the perforations' 4'0-40for supporting the lamp on the vehicle.

threaded apertures and therefore they cannot be seized with pliers, screw-driver, or the like, for turning them. A key having a socket 56, and a triangular shaped depression 57, is adapted to enter the apertures within which the screws 50 and 53 are respectively contained and engage the trian- `e'ular projections 51 wherebyV said\, screws may be conveniently-turned for accomplishing their respective objects;

It will be observed 'that in the movement'A of the lever 43 from unlocked to locked po sition, it has an outward and a rearward movement. .Therefore the end 48 first en- -gages the edge 14 of theclosure, through 'the perforation 49 and its subsequent motion is in a rearward direction, so that it draws the closure 11 tight against the end 37 of the casing 10 and the flange 36 ofthe parabola. Thev yielding packing ,ring 1'9 is brought forcibly into contact with these parts, and thereby a tight seal is effected. The movementof the screw 50 inwardly against the spring 46 forcibly places the lever 43 in locking position. The outward movement of the screw permitsthe spring 46 to return .the lever 43 to retracted or unlocked position. N v The `locking mechanism is contained within the casing 10 and between said cas,- ing andthe parabola so as not to interfere with the inward operation or the outward Aappearance -of the structure and said locking mechanism is operative from without ducing openings into the casing for insertioff of the key, as the screws retain the casing water and dust tight. v

`|While I have herein described av specific embodiment of my invention with some particularity, it, is. evident that many s, han es may b made vin the structure of engages the rlm of ,said closure to lock the parts together.

the. character described,

.2. In a devic of a substantially impervio housing comtheL scopel of the apwithm the spirit of the invention and with- Screw 53 isf for engagement with the sup;

Avsocket surrounds the perforationsso that the angular projections 51l are never outside of their respective screw 101s4 Athe casing without the necessity of proprising a casing and a osure, .an inner l ypart of said closure overlying the end of said lever, and means for operating said levervfrom the exterior of the casing to lock the parts together.

. In a device of the charac-ter described,

ay housing comprising a conical casingv terminating in a cylindrical part at its larger end,'said cylinder part provided with an opening 'for a lock bolt, a closure having a slip lit for said cylindrical part and having an inclosed part registering .with said bolt opening for engagement by said bolt, a

bolt mechanism, Within said housing, having a lock bolt, and means operable from the exterior of said housing for moving said bolt.I

` 5. In a lamp :structure comprising a casing and aclosure, a casting comprising a plate Within the casing and a portion integral with the plate extending through the casing Wall to the exterior thereof; and interior closure-locking means, and eX- terior lock-operating and casing-supporting means, carried by said casing.

6. In a lamp structure comprising a casing and closure, said casing `having a perforation in its side, aidait-supporting plate Within said casing, a lock u'pon said plate, and means projecting through said perforation to support said casing and to permit operation of said closure-locking means from the exterior. i

7. In a device of the character described, a housing comprising a casing and a closure in combination with a plate Within the. casing and locking means for said closure and casino'- supported on said plate.

. u and means extending from the plate through said casing for operating said lock-- mg means.-

8. In a device of the character described, a 4housing comprising in part an outer conoidal casing having a cylindrical part at its open end, an inner casing within said outer casing and spaced apart therefrom havingv an outturned cylindrical part at its open end and a slip lit With the cylindrical part' of said Vouter casing, and a closure. having a cylindrical'part for engage* ment with the outside surface of the cylin drical part of said casing, and a lock Within the space between said inne'r and outer casings/,or lockingfthe parts together.

In testimony whereof I hereunto set my hand in the presence of tivo Witnesses.

VINCENT' e. APPLE 

